$ git clone -n https://src.fedoraproject.org/rpms/rubygem-cucumber.git /var/lib/mock/f40-build-2322545-58667/root/chroot_tmpdir/scmroot/rubygem-cucumber
Cloning into '/var/lib/mock/f40-build-2322545-58667/root/chroot_tmpdir/scmroot/rubygem-cucumber'...
$ git fetch origin 1dda40a1607a58e8aabc561a0262e77a2acc049f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-cucumber
 * [new ref]         1dda40a1607a58e8aabc561a0262e77a2acc049f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1dda40a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild